Grove - I2C Touch Sensor

The I2C Touch Sensor is based on the Proximity Capacitive Touch Sensor Controller from FreeScale - MPR121. It detects the touch or proximity of human fingers. This sensor includes a Touch Sensor controller and 4 finger feelers. One can insert the connectors of feelers into base of Sensor controller, and start sensing the touch.

The platforms mentioned above as supported is/are an indication of the module's hardware or theoritical compatibility. We only provide software library or code examples for Arduino platform in most cases. It is not possible to provide software library / demo code for all possible MCU platforms. Hence, users have to write their own software library.

Since each electrode needs to be auto-configured by the MPR121 during power up and there is no power reset on the touch sensor controller, everytime you insert or remove a feeler, you need to reset the power of Seeeduino.

The feelers can also feel the human being fingers with something between, that's to say, you do not need to touch the feelers with your fingers indeed.

With a paperboard about 3 mm thick, the feeler can feel the touch of fingers, makes it a good solution for many applications.